Infiniti Q70 2014-present Drivetrain Bolt Torque Specifications & Fastener Values
Infiniti Q70 2014-present

Infiniti Q70 2014-present Drivetrain Bolt Torque Specifications

Detailed torque specifications for the drivetrain components of the 2014-Present Infiniti Q70, including transmission, driveshaft, and differential bolts.

Updated

Important Information

Safety guidelines and reference information for proper torque application

Quick Reference Guide
ft-lbs → Nm
× 1.356
ft-lbs → kg-m
× 0.138
Nm → ft-lbs
× 0.738
in-lbs → ft-lbs
× 0.083

Common Torque Patterns

Star Pattern

Used for wheels and other circular bolt patterns

Star Pattern torque pattern diagram showing proper bolt tightening sequence
Cross Pattern

Used for gaskets and cover plates

Cross Pattern torque pattern diagram showing proper bolt tightening sequence
Sequential Pattern

Used for head bolts and other critical components

Sequential Pattern torque pattern diagram showing proper bolt tightening sequence

Common Mistakes to Avoid

Over-tightening

Exceeding the specified torque value can stretch or break fasteners, damage threads, or crack components.

Prevention:

Always use a calibrated torque wrench and follow specifications exactly.

Incorrect Torque Sequence

Tightening bolts in the wrong order can cause uneven pressure distribution and potential leaks or damage.

Prevention:

Follow the manufacturer's specified torque sequence pattern.

Dirty Threads

Dirt, rust, or old thread locker can affect torque readings and proper fastener tension.

Prevention:

Clean and inspect all threads before assembly. Use new thread locker if specified.

Reusing TTY Bolts

Torque-to-yield bolts are designed to stretch and must not be reused.

Prevention:

Always replace TTY bolts with new ones. They are single-use only.

Dry vs. Lubricated

Not accounting for whether torque specs are for dry or lubricated fasteners can lead to incorrect tension.

Prevention:

Check if specs are for dry or lubricated threads. Use specified lubricant when required.

Recommended Tools

Torque Wrench (1/4" Drive)

Range: 2-25 ft-lbs
Small fasteners, delicate components

Torque Wrench (3/8" Drive)

Range: 10-100 ft-lbs
Most common automotive fasteners

Torque Wrench (1/2" Drive)

Range: 30-250 ft-lbs
Large fasteners, wheels

Angle Gauge

Torque-to-yield (TTY) bolts

Torque Wrench Care

  • Calibrate annually or after 5,000 clicks
  • Store at lowest setting
  • Keep clean and lubricated

Search Specifications

Search by component name, bolt size, or description

Torque Calculator

Convert between different torque units

Engine and flywheel

Components that secure the flywheel to the crankshaft and engine block.

1

Flywheel Bolts

M12 x 1.5
Torque Value
72.5 ft-lbs (98.5 N·m)
Important Notes
Average of 70-75 ft-lbs (95-102 nm) range.
2

Crankshaft Position Sensor Bolt

M8 x 1.25
Torque Value
12.5 ft-lbs (17 N·m)
Important Notes
Estimated value based on general industry standards.
3

Camshaft Position Sensor Bolt

M8 x 1.25
Torque Value
12.5 ft-lbs (17 N·m)
Important Notes
Estimated value based on general industry standards.

Transmission and mounts

Components that secure the transmission to the engine and chassis.

1

Transmission Mounting Bolts

M14 x 1.5
Torque Value
37 ft-lbs (50.5 N·m)
Important Notes
Average of 33-41 ft-lbs (45-56 nm) range.
2

Transmission Oil Pan Bolts

M10 x 1.25
Torque Value
84 ft-lbs (11 N·m)
Important Notes
Average of 71-97 inch-lbs (8-11 nm) range.
3

Transmission Drain and Fill Plugs

M12 x 1.5
Torque Value
30.5 ft-lbs (41.5 N·m)
Important Notes
Average of 25-36 ft-lbs (34-49 nm) range.

Drivetrain and axles

Components that secure the drivetrain and axles to the transmission and differential.

1

Drive Axle/Half Shaft Bolts

M14 x 1.5
Torque Value
67 ft-lbs (91 N·m)
Important Notes
Average of 58-76 ft-lbs (79-103 nm) range.
2

CV Joint/Axle Nut

M18 x 1.5
Torque Value
141 ft-lbs (191.5 N·m)
Important Notes
Average of 137-145 ft-lbs (186-197 nm) range.
3

Drive Axle/Half Shaft Nut (at the wheel hub)

M18 x 1.5
Torque Value
90 ft-lbs (122 N·m)
Important Notes
Average of 80-100 ft-lbs (108-136 nm) range.

Differential and transfer case

Components that secure the differential and transfer case to the drivetrain.

1

Differential Drain/Fill Plug

M12 x 1.5
Torque Value
32.5 ft-lbs (44 N·m)
Important Notes
Average of 29-36 ft-lbs (39-49 nm) range.
2

Transfer Case Drain/Fill Plug

M12 x 1.5
Torque Value
32.5 ft-lbs (44 N·m)
Important Notes
Average of 29-36 ft-lbs (39-49 nm) range.

Transmission cooler

Components that secure the transmission cooler to the transmission.

1

Transmission Cooler Line Fittings

M10 x 1.25
Torque Value
17.5 ft-lbs (23.5 N·m)
Important Notes
Average of 15-20 ft-lbs (20-27 nm) range.

Troubleshooting Guide

Common issues, diagnostic steps, and prevention guidelines

Common Issues

Bolt stretching, stripped threads, uneven torque patterns

Loose Components

Symptoms:
  • Rattling or vibration noises
  • Visible movement in components
  • Uneven panel gaps
Solutions:
  • Clean threads and mounting surfaces
  • Replace damaged fasteners
  • Apply proper torque in sequence
  • Use thread locker if specified

Stripped Fasteners

Symptoms:
  • Unable to achieve proper torque
  • Fastener spins freely
  • Visible thread damage
Solutions:
  • Use thread repair kit if appropriate
  • Install thread insert (HeliCoil)
  • Replace component if threaded hole is damaged
  • Upgrade to higher grade fastener if recommended

Overtightened Components

Symptoms:
  • Cracked or deformed parts
  • Broken fasteners
  • Compressed gaskets or seals
Solutions:
  • Replace damaged components
  • Use new fasteners
  • Follow proper torque sequence
  • Verify correct torque specifications

Diagnostic Steps

Visual inspection, torque verification, thread assessment

1

Visual Inspection

Inspect the affected area for any visible signs of damage or wear

  • Check for cracks or deformation
  • Look for signs of excessive wear
  • Verify proper fastener installation
2

Torque Verification

Verify the torque applied to the fasteners

  • Check the torque wrench calibration
  • Verify the torque specification
  • Compare the applied torque to the specification
3

Thread Assessment

Assess the condition of the threads

  • Check for signs of thread damage
  • Verify the thread type and size
  • Check for proper thread engagement

Prevention Guidelines

Best practices, maintenance tips, tool care

Best Practices

  • Always follow the recommended torque specification
  • Use the correct type and size of fasteners
  • Verify the torque wrench calibration regularly

Maintenance Tips

  • Regularly inspect the affected area for signs of wear or damage
  • Replace damaged or worn-out components promptly
  • Keep the work area clean and organized

Tool Care

  • Regularly clean and maintain the torque wrench
  • Store the torque wrench in a dry and secure location
  • Verify the torque wrench calibration before each use

Frequently Asked Questions

Find answers to common questions about torque specifications

Q1

What are the torque specifications for the drivetrain bolts on a 2014-Present Infiniti Q70?

The torque specifications for the drivetrain bolts vary depending on the specific component. For example, the driveshaft-to-differential bolts typically require 47-53 ft-lbs, while the transmission-to-engine bolts may require 55-65 ft-lbs. Always refer to the official Infiniti service manual for your specific model and year for precise values.

Q2

How often should I check the torque on drivetrain bolts?

It is recommended to check the torque on drivetrain bolts during routine maintenance, such as every 30,000 miles or after any major drivetrain service. Additionally, inspect them if you notice unusual vibrations, noises, or after driving on rough terrain.

Q3

Can I reuse drivetrain bolts, or should they be replaced?

Some drivetrain bolts, such as those used in high-stress areas like the transmission or differential, are designed for one-time use and should be replaced after removal. Reusing these bolts can lead to improper torque and potential failure. Always check the service manual for bolt replacement guidelines.

Environmental Considerations

Temperature, humidity, and seasonal effects on torque specifications

Temperature Effects

Includes: High Heat, Cold Weather, Thermal Cycling

Temperature can significantly impact torque values and fastener behavior

Cold Weather

Effects:
  • Increased material brittleness
  • Higher torque required due to thread contraction
  • Reduced thread lubricant effectiveness
Recommendations:
  • Allow components to warm to room temperature when possible
  • Consider using winter-grade thread lubricants
  • Check torque values more frequently during winter months

Hot Weather

Effects:
  • Thermal expansion of components
  • Decreased friction in threads
  • Accelerated lubricant breakdown
Recommendations:
  • Check torque when components are at normal operating temperature
  • Use temperature-resistant thread lockers
  • Consider re-torquing after heat cycles

Humidity and Corrosion

Covers: Rust Prevention, Salt Exposure, Moisture Control

Moisture and corrosion can affect fastener integrity and torque values

High Humidity

Effects:
  • Accelerated corrosion formation
  • Reduced friction coefficient
  • Potential thread seizing
Prevention:
  • Use corrosion-resistant fasteners
  • Apply appropriate anti-seize compounds
  • Maintain proper protective coatings

Salt Exposure

Effects:
  • Rapid corrosion development
  • Thread damage
  • Seized fasteners
Prevention:
  • Regular underbody washing
  • Use of sacrificial anodes where appropriate
  • Application of protective coatings

Seasonal Maintenance

Spring, Summer, Fall, and Winter maintenance schedules

Spring

  • Inspect for winter damage
  • Clean and protect exposed fasteners
  • Check torque on critical components

Summer

  • Monitor heat-affected components
  • Check expansion-related loosening
  • Inspect cooling system mounts

Fall

  • Prepare for winter conditions
  • Apply corrosion protection
  • Verify all fasteners are properly torqued

Winter

  • More frequent inspection of critical fasteners
  • Check for salt damage
  • Monitor suspension component torque

Related Resources

Tools, service procedures, and technical bulletins

Recommended Tools

Digital Torque Wrench

A precision tool for applying accurate torque to drivetrain bolts.

  • Adjustable torque settings
  • Digital display for precise readings
Learn more

Breaker Bar

A long-handled tool used to loosen tight bolts before applying torque.

  • Durable construction
  • Extended leverage for ease of use
Learn more

Torque Angle Gauge

Used to measure the angle of rotation when applying torque-to-yield bolts.

  • Accurate angle measurement
  • Compatible with most torque wrenches
Learn more
Service Procedures

Drivetrain Bolt Torque Application

Detailed steps for applying the correct torque to drivetrain bolts on a 2014-Present Infiniti Q70.

  • Ensure the vehicle is on a flat surface and the parking brake is engaged.
  • Locate the drivetrain bolts requiring torque application.
  • Use a breaker bar to loosen the bolts if necessary.
  • Set the digital torque wrench to the specified torque value for the drivetrain bolts.
  • Apply torque to each bolt in a crisscross pattern to ensure even distribution.
  • For torque-to-yield bolts, use a torque angle gauge to measure the required rotation angle after initial torque application.
  • Double-check all bolts to ensure they meet the specified torque values.
View full procedure
Technical Service Bulletins

Drivetrain Bolt Torque Specification Update

2021-05-15

Updated torque specifications for drivetrain bolts on 2014-Present Infiniti Q70 models.

2014-2023 Infiniti Q70

Resolution: Refer to the latest service manual for updated torque specifications and ensure all bolts are torqued to the new values during service.

Drivetrain Bolt Loosening Issue

2019-08-22

Reports of drivetrain bolts loosening over time on certain Infiniti Q70 models.

2014-2018 Infiniti Q70

Resolution: Inspect drivetrain bolts during routine maintenance and re-torque to the specified values if necessary. Apply thread locker if recommended by the manufacturer.

About the Author

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Alan Montanye - Automotive Technical Specialist
ASE

Alan Montanye

Automotive Technical Specialist

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